Brooder.



W. BACHMANN BROODER.

APPLICATION FILEI APR. 9, 1909.

fi mfifil u Patented Mar. 1, 1910.

waztrnr. nnonraann, or nancnncnonsnonr, NEAR sank, GERMANY.

I BBOOJDER.

Specification of Letters Patent Application filed April 9, 1909.

Patented at. it, rain.

Serial No. 489,023.

To all whom it mag concern:

Be it known that ll, WALTER BAoHr/IANN, a subject of the German Emperor, residing at- Langengrobsdorf, near Gera, Reuss, Germany, have invented new and useful Improvements in Brooders, of which the fol lowing is a specification,

For raising chickens bred by means of a breeding machine there are, as is known,

contrivances in use which contain an art1- ficial source of warmth and, as a conseopnient of the animals as it-needs the upper- -wannth to perfect wings and" feathers.

q'uence, are to form a substitute for the mat 'ural warmth ofv the clucking-hens body. These contrivances, however, do not'fully answer their purposein'asmuch as the ra-. diation of warmth is mostly effected from one oint, so that'the chickens strive toward reac ing this point and thereby press each other to death, or the warming is done from beneath and this is detrimental to thedevel- Moreover these breeding apparatuses .are

. closed by curtains toward their outsides so that the chickens are constantly breathing in air contaminated by their own respiration thus comingto an end aside from the fact that animals which are protected against every draft of fresh air are weakened and accordingly little capable of resistance to diseases etc.

Contrary thereto the invention has the advantage that it forms a contrivance for raising chickens which is strictly in accordance with nature, so that the chickens are growing up in a manner as if raised by a ducking-hen. y I

The brooder consists in the main in a suitable circular plate covered on the under sidewith a woolen or similar bolster,

is-resting a thermaphore or an apparatus for transferring warmth, which can easily be removed after taking oif a circular ca covering the whole contrivance. The insu ating ring providedwith double walls is supportedby three adjusting-screws and adrnlts according to wants both 'a lifting and a sinking which is necessary because the contr1vance must always be so arranged as to enable the chickens to touch the wool-bolster with the back. To give further due attention to the growth of the animals there is arranged at-the underside a special ring likewise rovided with a bolster, WlllCl'l 1s connected with the raising-contrivance so that the flat side of the bolster experiences an enlargement.

The warming efiected from above by a therrnaphore, already in use with breeding- Il'lfiChlIlGS, is, because of the arrangement of the woolen or a similar bolster of an even character, so that the chickens do not closely press themselves together and sufl'er there' -by. 011 the contrary,-they approach each other in such a manner as they are wonted to dobeneath the feathers of the cluckin hen. Moreover, the animals are constantlj breathing in fresh air thus getting hardened, so that a weaning becomes superfluous.

In the accompanying drawing: Figure 1 is a vertical central section through a brooder embodying my invention; Fig. 2 a horizontal section, partly in plan view, on line A--B, Fig. 1, and Fig. 3 a section similar to Fig. 1, showing the brooder provided with a circumferential enlargement.

The late Oprovidedwith a woolen or similar olster a is aflixed to the circular hollow body 0 serving as insulator which sur rounds the thermaphore or heater d composed 'of metal or the like and filled for example,

as is known, with acetic natron and is covered by a conical cap or cover f. The latter is removably secured to ring 0 by means of hooks e pivoted to the cover, and adapted to engage keepers e secured to the. ring. The

broo screws tappe ottom plate 12 from the supporting ground may be readily varied in conformity with the sizev of the chickens.

The second form of the brooder (Fig. 3)

differs from the form given in Figs. 1 and 2 only in so far as in this case acircular ring it likewise bolstered at the under-side is arranged in order to broaden plate 0.

er is supported by a number of vertical 7 into brackets k ofring 0. By properly adjusting screws 9, the distance of '90 The thermaphore, capable of being easilyf taken out, is heated in boiling water until the acetic natron is fully melted and, because of the l'atentwarmth taken up, remains subsequently hot for a longtlnie, so that a continual even temperature pre vails under bolster a. a

The chicken which, following their natu ral instinct, press toward the bolster with the back are as a consequence s o warmed as if sitting beneath a clucking-hen and are nevertheless not excluded from the fresh air, so that they are developing in a normal way and their mortality is very limited.

After the chickens are sufiiciently developed.

the warming of the brooder by thermaphore v is"done away with in as much as their bodily warmth in connection with the woolen or similar bolster is then sufiioient to keep the chickens in a sound condition.

I claima A brooder, comprising a bottom plate, a heater resting thereon, a bolster secured to the lower side of said bottom plate, an annular insulator encircling the heater, a removable cover above sai heater and insulator, a hollow ring encircling the insulator and having a lower bolstered side flush with the bottom plate, and means for adjusting the distance of said bottom plate from the supporting ground.

In testimony whereof I afiix my signature.

WALTER BACHMANN.

In the presence of J. HENNAN, CHARLES NEURR. 

